It sounds like something out of Tony Stark’s (Iron Man’s) lab: a machine that creates real-life objects just like a regular printer duplicates pictures and documents from your computer. But 3-D printers are real, and people use them to whip up everything from simple toys like chess pieces and rubber duckies to prototypes of complex inventions. Simply load the printer with a sort of plastic “ink” and select the object you wish to print from a “Thingiverse” of thousands of doodads (or design your own object. Then hit the Print button. Hot-ink guns on robotic arms move within the machine to “print” the object, layer by layer, until it’s complete. Eventually, 3-D printers will evolve to create more complex goodies, including snacks!
Picture Credit : Google